Area of Rhombus given length of side and an angle Area of rhombus a 2 sin c where a is the length of the side and c is any interior angle. Examples of finding the area of a circle Example given radius. What is the area of this rectangle.
LARGE AreaofaSquareFormulaa 2 Where a is the length of the side of a square.
All the facts and properties described for regular polygons can also be applied to a square. Area l b. Be careful to say square meters not meters squared. The basic unit of area in the metric system is the square meter which is a square that has 1 meter on each side.